tender for additional / alteration to jcos/ors/civ def staff mdf accn at ima dehradun.-- 1 demolition of old brick work or stone masonary built in cement mortar including all quoins, arches, pillars etc complete all as specified and directed. 2 m & l brick work using sub class “b” bricks straight or curved on plan exc 6 metre mean radius built in cm 1:4 ( old size brick) including demolition of old brick work complete all as specified and directed. 3 m & l brick work with subclass b bricks(old size), straight or curved on plan to any radius in half bricks thick walls built in 1:4 in cement mortar all as specified and directed 4 demolition of cement concrete ground floor and paving n.exc 15cm thick below or above ground level complete all as specified and directed. 5 75 mm thick pcc 1;3:6 type c-2 using 40mm graded stone aggregate as in plinth protection or similar places and finishing the surface even & smooth with out using extra cement including making joints 12mm wide to the full depth of pcc at every 3 meter and every change of direction and filling the same with mixture of bitumen & sand in ratio (1:1) by weight including necessary form work etc complete all as specified and directed. 6 cutting chases, pinning in, making good to facings where reqd and pointing in cement motor (1:3) to ends or edges of landings, steps, cills, sunsheds, shelves, lintels, etc, and cutting chases for concealed water tubing or concilled conduit wiring, etc and making good exceed 20 cm girth in brick walls.